KR20180040801A - Toothbrush with rotatable head - Google Patents

Abstract

The present invention relates to a functional toothbrush capable of rotating a head of a toothbrush and includes a first connection part 110 extending from a lower end of a toothbrush head 100 having bristles on its surface toward a handle 200, And a second connection part (210) extending toward the toothbrush head (100) and engaging with the first connection part (110); The first connection part 110 is provided with a hinge part 111 which forms a body of a round bar shape from the center of the lower side end face toward the handle 200 and a hinge part 111 which is formed in the upper part of the lower side face by a predetermined depth toward the toothbrush head 100 And a guide groove The second connection portion 210 is provided with a hinge hole 211 through which the hinge portion 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge portion 111 at the center section of the upper side, A rotation guide 212 protruding from an upper end surface of the second connection part 210 to have a predetermined length and being provided inside the rotation guide groove 114; The toothbrush head 100 is configured to rotate around the handle 200 in accordance with a rotation angle restricted by the rotation guide 212 provided inside the rotation guide groove 114 with the hinge portion 111 as a central axis Accordingly, the present invention provides a functional toothbrush capable of naturally turning left and right alternately.

Description

[0001] TOOTHBRUSH WITH ROTATABLE HEAD [0002]

The present invention relates to a functional toothbrush in which a head portion of a toothbrush is partially rotatable spontaneously. More particularly, the present invention relates to a functional toothbrush which is rotatable in a predetermined angle range from a head of a bristle, The present invention is directed to a functional toothbrush capable of rotating the head of a toothbrush so that the toothbrush head naturally rotates alternately left and right in the process so that effective brushing can be achieved.

Generally, a toothbrush used for oral hygiene is formed by integrally forming a head of a toothbrush bristled with a toothbrush and a handle gripped by a user.

The head of the toothbrush is formed in various shapes such as a long oval shape or a triangular shape and a trapezoid shape in which the corner is curved for contact with the tooth surface and smooth entry into the mouth, and bristles are formed on the surface.

The handle has a rod-like shape extending from the head of the toothbrush and supports the head of the toothbrush. In order to use the toothbrush head, the handle may be curved in a streamlined shape according to the position of the finger.

Such a conventional toothbrush is configured to allow the user to hold the handle and move the head of the toothbrush in a desired direction using the force of the arm, thereby complicating the use of the toothbrush. In particular, in the case of the molar teeth deep in the oral cavity, There is a disadvantage that it is not easy to completely remove the foreign matter.

Accordingly, recently, a electric toothbrush capable of automatically operating the toothbrush by mounting an electric motor inside the handle has been developed and provided.

Background of the Invention [0002] Generally known electric toothbrushes are known, for example, as disclosed in Registration Utility Model No. 20-0331111, in which bristles are rotated at a high angle of 360 ° around the head axis of a toothbrush perpendicular to the handle axis, So that brushing is performed.

Meanwhile, a general electric toothbrush such as that described above has been developed to develop an electric toothbrush that rotates the bristles around the handle shaft. For example, as an example of the configuration of the electric toothbrush of the present invention, as disclosed in Patent No. 10-0629839 The following is an example.

A toothbrush of the present invention comprises a bristles, a bristle base on which the bristles are placed in a direction perpendicular to the longitudinal direction along an outer circumferential surface, a toothbrush neck which is formed in a cylindrical shape whose opposite ends are deflected in mutually opposite directions and which is connected to the bristle stand, A bristle cover provided at an upper end of the toothbrush neck to surround one side of the bristles; an upper case screwed to the lower end of the toothbrush neck; A main body case including an electric motor, a melody device and a rechargeable battery therein, a power plug on the bottom surface thereof, an operation switch on the outer surface thereof, and a charging indicator, and screwed into a lower end portion of the upper case; A power supply cover which is detachably coupled to the power plug to protect the power plug from moisture and a power transmission unit that is connected to the bristle band via the inside of the toothbrush neck which is refracted from the axis of the electric motor to transmit the power of the electric motor to the bristles .

In addition, as an example of a technique of manually operating the principle of operation of the electric toothbrush as described above, the configuration of a rotating toothbrush known in Registration Utility Model No. 20-04445879 will be briefly described below.

A bristle part having bristles attached to an outer circumferential surface of a cylindrical body and having a coupling base extending downward from a cylindrical body; a rotary shaft coupled to a rotational power source of the spool to which the bristle part is coupled at an upper end and the spiral spring is wound; A support rod fixedly coupled to an outer end of the winding spring to be rotatably supported and rotatably supported by the support, and a support member disposed in a direction opposite to the support base to allow automatic return due to pulling due to external pressure, And a rotation inducing member which is in a state of being wound on the rotation fixedly coupled to the rotary shaft and whose outer end portion is fixedly coupled to the rotary external pressure providing member.

Registration No. 10 - 0629839 Registration Utility Model No. 20 - 0445879 Patent No. 10 1057113 Registration Utility Model No. 20 - 0260795

In the electric toothbrush of the related art as described above, the bristles or the head of the toothbrush are rotated by the power of the electric motor so that the brushing is automatically performed even if the user does not move the arm.

However, since the electric toothbrush as described above is equipped with an electric motor and various parts for driving the bristles or the head of the toothbrush, the structure is complicated and the manufacturing cost is higher than that of a general toothbrush. Even though the waterproof function is basically constructed, There is a problem that frequent failure occurs due to the characteristics of the frequent power transmission device.

In addition, the electric toothbrush causes excessive irritation on the tooth surface and the gum due to the high-speed rotation of the bristles, and the abrasive material contained in the toothpaste may act on the teeth more than necessary to cause tooth damage. This is a required situation.

Meanwhile, the manual toothbrush of the present invention is a manual type of the function of the electric toothbrush, and the user operates the rotary external pressure supply unit to rotate the bristles using the elastic tension of the spring spring and the elasticity at the time of releasing the external pressure, .

However, the rotary toothbrush has a fatal disadvantage accompanied by the inconvenience that the user must constantly repeatedly operate the rotary external pressure supply portion by hand in order to rotate the bristles.

In particular, since the rotary external pressure providing portion of the rotary toothbrush is provided at a position corresponding to the handle portion of the toothbrush so that the user grasps and stretches the finger in a state holding the rotary external pressure providing portion, The smooth movement of the toothbrush can be hindered.

Accordingly, the present invention has been made to solve the above-mentioned problems,

A first connection part 110 extending from the lower end of the toothbrush head 100 having bristles on its surface toward the knob 200 and a second connection part 110 extending from the upper end of the knob 200 toward the toothbrush head 100, And a second connection part (210) for coupling with the first connection part (110);

In the first connection part 110,

A hinge portion 111 which forms a body of round bar shape from the center of the lower end face toward the handle 200 and a rotation guide groove 114 which forms a predetermined depth toward the toothbrush head 100 from the upper portion of the lower end face, ;

In the second connection part 210,

A hinge hole 211 through which the hinge portion 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge portion 111 at the center of the upper end surface, A rotation guide 212 protruding from an upper end surface of the rotation guide groove 210 by a predetermined length to be provided inside the rotation guide groove 114;

The toothbrush head 100 is rotated about the hinge portion 111 as a center axis and rotated from the handle 200 in accordance with a rotation angle limited by a rotation guide 212 provided inside the rotation guide groove 114 . Therefore, since the bristles receive the lateral force by the curved surface and the groove on the teeth and the gum path even if brushing before and after, it is possible to provide a functional toothbrush that can rotate the brush head naturally in right and left directions against the direction of brushing. It is possible to achieve the goal of inducing.

The present invention provides a toothbrush that naturally rotates the head of the toothbrush in right and left angles in a longitudinal direction at a certain angle in the process of brushing the teeth in the lateral direction, thereby eliminating the separate electric or manual driving device, .

Therefore, compared with the rotary toothbrush technique such as a conventional electric toothbrush, there is an advantage that structural simplification can be realized, manufacturing cost can be reduced, and the possibility of failure can be remarkably reduced.

Particularly, compared with the conventional electric toothbrush, the possibility of causing tooth or gum damage is remarkably low. In the course of general brushing, the toothbrush head moves along the curved surface of the tooth and the gum, and the toothbrush head naturally rotates alternately So that the foreign matter between the teeth can be removed completely safely and easily.

In addition, since the toothbrush head and the handle can be separated and combined easily, the toothbrush head or the handle can be individually replaced, or the inside can be easily cleaned, thereby providing various advantages in terms of maintenance.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an embodiment of a functional toothbrush in which the head of the toothbrush of the present invention is rotatable.
Figures 2 to 3 are exploded views in accordance with an embodiment of a functional toothbrush in which a toothbrush head of the present invention is rotatable.
Figure 4 is a top view of an embodiment of a functional toothbrush capable of rotating a toothbrush head of the present invention and taken along line AA and BB.
Figures 5 to 6 are operational states in accordance with an embodiment of a functional toothbrush in which the head of the toothbrush of the present invention is rotatable.
FIG. 7 is a cross-sectional view taken along the line CC and DD in FIG. 6;
8 is a perspective view of another embodiment of a functional toothbrush of the present invention in which the head of the toothbrush is rotatable.
9 to 10 are exploded views in accordance with another embodiment of a functional toothbrush in which a toothbrush head of the present invention is rotatable.
11 is a cross-sectional view taken along lines A'-A 'and B'-B', according to another embodiment of a functional toothbrush capable of rotating the toothbrush head of the present invention.
Figures 12-13 are operational state diagrams in accordance with another embodiment of a functional toothbrush in which the toothbrush head of the present invention is rotatable.
14 is a cross-sectional view taken along lines C'-C 'and D'-D' in FIG. 13;
Fig. 15 is a diagram illustrating an example of the use state of the functional toothbrush capable of rotating the head of the toothbrush of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe the structure and operation of a functional toothbrush according to a preferred embodiment of the present invention.

FIG. 1 is a perspective view of a functional toothbrush capable of rotating a toothbrush head of the present invention, FIGS. 2 to 3 are exploded views of a functional toothbrush capable of rotating the toothbrush head of the present invention, Sectional view taken along line AA and BB in accordance with an embodiment of a functional toothbrush rotatable with a toothbrush head of the present invention, Fig. 7 is a cross-sectional view taken along the line CC and DD in Fig.

In the functional toothbrush in which the toothbrush head is rotated according to the present invention, the toothbrush head 100, which moves along the curve of the teeth in the course of friction between the bristles and the tooth surface, can naturally rotate left and right It is noted that the toothbrush is configured such that the toothbrush is rotatable in the longitudinal direction while simultaneously brushing in the transverse direction, and the bristles are effectively applied between the teeth.

To this end, the functional toothbrush 1 of the present invention in which the head of a toothbrush of the present invention is rotatable, as shown in FIG. 1, includes a first connecting portion 110 And a second connection part 210 extending from the upper end of the handle 200 toward the toothbrush head 100 and engaged with the first connection part 110.

The toothbrush 1 of the present invention is constructed such that the toothbrush head 100 and the knob 200 are separated from each other as described above so that the first connection part 110 and the second connection part 210 on both sides of the toothbrush head 100, And is provided to replace the toothbrush head 100 or the knob 200 or to easily separate both sides of the toothbrush head 100, if necessary.

As shown in FIGS. 2 to 3, the first connection part 110 includes a hinge part 111 having a circular-bar-shaped body extending from the center of the lower end face toward the handle 200 to a predetermined length, And a rotation guide groove (114) for forming a predetermined depth toward the toothbrush head (100).

The second connection portion 210 is provided with a hinge hole 211 through which the hinge portion 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge portion 111 at the center of the upper end surface, A rotation guide 212 formed inside the rotation guide groove 114 is formed by protruding a predetermined length from the upper end surface of the second connection part 210 on the upper side of the hole 211.

4, when the first connection part 110 and the second connection part 210 are coupled to each other, the hinge part 111 of the first connection part 110 is connected to the hinge hole 211 of the second connection part 210 And the rotation guide 212 of the second connection part 210 is provided inside the rotation guide groove 114 of the first connection part 110 so that the toothbrush head 100 The rotation angle of the motor is limited.

5 to 7, the toothbrush head 100 is rotated by the rotation guide 212 provided on the inside of the rotation guide groove 114 with the hinge portion 111 as a central axis, And is configured to rotate from the handle 200 according to the angle. 7 shows an operating state in which the toothbrush head 100 rotates together with the rotation guide groove 114 within a limited angle.

The rotation guide groove 114 includes a guide curved surface 112 forming a curved surface surrounding the outer diameter of the hinge portion 111 as shown in an enlarged view of FIG. And guide slopes 113a and 113b for symmetrically forming slopes having a certain angle of inclination with respect to the center axis of the guide slope 111. [

The rotation guide 212 is provided so as to be in contact with the guide curved surface 112 at an inner side of the rotation guide groove 114 so that both side surfaces of the rotation guide 212 are aligned with the rotation direction of the toothbrush head 100 And selectively contact one or the other of the guide slopes 113a and 113b.

The inclination of the guide slopes 113a and 113b is a value that determines the radius of rotation of the toothbrush head 100 and can be formed at an appropriate angle in consideration of a general tooth length. Preferably, the angle of the guide slopes 113a and 113b is set so that the guide slopes 113a and 113b are completely in contact with the side surfaces of the rotation guide 212 when the toothbrush head 100 is rotated with the hinge portion 111 as a central axis, It is necessary to design the guide slopes 113a and 113b reflecting the lateral width dimension of the rotation guide 212 so as to form the inclination.

The hinge portion 111 is provided with a release preventing groove 115 penetrating the hinge portion 111 at a predetermined depth along the outer circumferential surface of the hinge portion 111. A hinge hole 211 is formed in the second connection portion 210, A coupling hole 213 penetrating through the hinge hole 211 at a surface corresponding to the separation preventing groove 115 of the hinge portion 111 inserted into the hinge hole 111 is formed.

Therefore, as shown in the cross-sectional view of FIG. 4, the engagement hole 213 is formed with a releasing part 220 which forms an arch of an inner diameter corresponding to the outer diameter of the release preventing groove 115, It is configured to prevent the hinge portion 111 from being detached from the hinge hole 211 in use.

The hinge portion 111 may be detached from the hinge hole 211 when the separation chamber 220 is separated from the coupling hole 213 so that the coupling between the toothbrush head 100 and the handle 200 can be easily performed It is possible to do.

In the embodiment of the present invention, the release claw 220 is formed in a cubic structure having arcs corresponding to the coupling holes 213 and the release claws 115, It is possible to apply a predetermined snap ring capable of preventing the detachment of the latching member 111 from being released, or a modification to another form.

Hereinafter, another embodiment of the functional toothbrush capable of rotating the head of the toothbrush of the present invention will be described. Figures 9 to 10 are exploded views according to another embodiment of a functional toothbrush capable of rotating the toothbrush head of the present invention. Figure 11 is a perspective view of the toothbrush head of the present invention Sectional view taken along lines A'-A 'and B'-B' in accordance with another embodiment of a functional toothbrush capable of rotating a toothbrush head of the present invention, and Figs. 12-13 show that a functional toothbrush Fig. 14 is a cross-sectional view taken along lines C'-C 'and D'-D' in Fig. 13.

9 to 10, the first connection part 110 is provided with a hinge part 111 which forms a circular-bar-shaped body with a predetermined length from the center of the lower end face toward the handle 200, a hinge part 111 A rotation guide 212 'protruding from a lower end surface of the first connection part 110 with a predetermined length is formed.

The second connection unit 210 is provided with a hinge hole 211 through which the hinge unit 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge unit 111, And a rotation guide groove 114 'which is formed at a predetermined depth from the upper surface of the cross section toward the handle 200.

12, when the first connection part 110 and the second connection part 210 are coupled to each other, the hinge part 111 of the first connection part 110 is connected to the hinge hole 211 of the second connection part 210 And the rotation guide 212 'of the first connection part 110 is provided inside the rotation guide groove 114' of the second connection part 210 so that the toothbrush head 100 ' Thereby limiting the rotation angle of the motor 100.

Therefore, as shown in FIGS. 12 to 14, the toothbrush head 100 has the rotation guide 212 'provided on the inside of the rotation guide groove 114' with the hinge portion 111 as a central axis, Is configured to rotate from the handle (200) in accordance with the rotational angle limited by the guide groove (114 '). The sectional view of FIG. 14 shows an operating state in which the toothbrush head 100 rotates within a limited angle together with the rotation guide 212 '.

10, the rotation guide groove 114 'includes a guide curved surface 112' forming a curved surface surrounding the outer diameter of the hinge hole 211, and a guide curved surface 112 ' And guide slopes 113a 'and 113b' that symmetrically form slopes having a predetermined angle of inclination from the hinge holes 211 on both sides.

The rotation guide 212 'is provided so as to be in contact with the guide curved surface 112' from the inside of the rotation guide groove 114 ', and the rotation guide 212' is provided along the rotation direction of the toothbrush head 100 ' Side guide slopes 113a 'and 113b', respectively.

The hinge portion 111 is provided with a release preventing groove 115 and a coupling hole 213 is formed in the second connection portion 210 to connect the separation chamber 220 to each other. Such a configuration has been described with reference to the configuration of one embodiment of the functional toothbrush capable of rotating the head portion of the toothbrush of the present invention described above, and further explanation will be omitted.

A state of use of the functional toothbrush capable of rotating the head of the toothbrush to which the technique of the present invention having the above-described structure is applied will be described as follows.

Fig. 15 is a view showing the use state of the functional toothbrush capable of rotating the head of the toothbrush of the present invention. Fig.

As shown in Fig. 15, the user performs brushing while moving the toothbrush 1 forward and backward along the lateral direction in which the teeth are arranged. At this time, the bristles rub along the curve between the surface of the tooth and the gums and between the teeth and the gums.

For example, in the course of reciprocating the toothbrush 1 forward and backward as shown in FIG. 15 (a), when the bristles rub over the surface of the teeth or the curved line between the teeth and the gums, The toothbrush head 100 rotates in one direction.

On the other hand, when the bristles are reciprocated in the course of reciprocating the toothbrush 1 as shown in FIG. 15 (b), the curved line between the teeth or between the tooth and the gum is curved, The toothbrush head 100 rotates to the other side.

Accordingly, when the user uses the functional toothbrush capable of rotating the head of the toothbrush of the present invention, the user moves forward and backward in the lateral direction to effectively brush between the teeth and the gums, the toothbrush of the present invention can be shaped The toothbrush head 100 rotates alternately in the upward and downward directions with the knob 200 as a starting point to remove foreign matter between the teeth. Such an action allows highly effective brushing, especially when brushing the molar region deep within the oral cavity, or the inner region of the tooth.

In the functional toothbrush capable of rotating the toothbrush head according to the present invention as described above, the toothbrush head 100 moving along the curve of the tooth naturally excludes the power transmission structure of the electric or manual driving device, The toothbrush capable of performing the operation is advantageous in that brushing in the lateral direction is simultaneously performed and brushing in the longitudinal direction is automatically performed to effectively act the bristles between the teeth.

Therefore, since it acts according to the teeth of the user or the shape of the teeth and the gums, the possibility of causing damage to the teeth or the gums is remarkably low, and the foreign matter between the teeth can be removed safely and easily.

In addition, since the structure has a very simplified structure compared to the conventional technology having similar functionality, the manufacturing cost can be reduced, the advantage in cost competitiveness can be secured, and the possibility of failure can be remarkably reduced.

In addition, since the present invention can easily separate and combine the toothbrush head 100 with the knob 200, the toothbrush head 100 or the knob 200 can be individually replaced or the inside can be easily cleaned, , And can be managed.

1: Rotating toothbrush
100: Toothbrush head
110: first connection part
111: Hinge section
112/112 ': guide curved surface
113a, 113b / 113a ', 113b': Guide slopes
114/114 ': Rotary guide groove
115:
200: Handle
210: second connection portion
211: Hinge ball
212/212 ': Rotary guide
213: coupling ball
220: Outbreak District

Claims (6)

A first connection part 110 extending from the lower end of the toothbrush head 100 having bristles on its surface toward the knob 200 and a second connection part 110 extending from the upper end of the knob 200 toward the toothbrush head 100, And a second connection part (210) for coupling with the first connection part (110);
In the first connection part 110,
A hinge portion 111 which forms a body of round bar shape from the center of the lower end face toward the handle 200 and a rotation guide groove 114 which forms a predetermined depth toward the toothbrush head 100 from the upper portion of the lower end face, ;
In the second connection part 210,
A hinge hole 211 through which the hinge portion 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge portion 111 at the center of the upper end surface, A rotation guide 212 protruding from an upper end surface of the rotation guide groove 210 by a predetermined length to be provided inside the rotation guide groove 114;
The toothbrush head 100 is rotated about the hinge portion 111 as a center axis and rotated from the handle 200 in accordance with a rotation angle limited by a rotation guide 212 provided inside the rotation guide groove 114 Wherein the toothbrush head is rotatable. The method according to claim 1,
The rotation guide groove (114)
A guide curved surface 112 which forms a curved surface surrounding the outer diameter of the hinge portion 111 and a guide slope 112 which symmetrically forms a slope having a certain angle of inclination from the both sides of the guide curved surface 112 to the central axis of the hinge portion 111, (113a, 113b);
The rotation guide (212)
Both sides of the rotation guide 212 are disposed in contact with the guide curved surface 112 in the inside of the rotation guide groove 114 so that one side or the other of the other side guide slopes 113a and 113b Wherein the toothbrush head is rotatably attached to the toothbrush body. The method according to claim 1,
The hinge portion 111 is provided with a release preventing groove 115 formed to penetrate the hinge portion 111 at a predetermined depth along the outer peripheral surface of the body,
A coupling hole 213 penetrating through the hinge hole 211 at a position corresponding to the release preventing groove 115 of the hinge portion 111 inserted into the hinge hole 211 is formed in the second connection portion 210 Forming;
Wherein the coupling hole (213) is formed by coupling a releasing part (220) forming an arch of an inner diameter corresponding to an outer diameter of the release preventing groove (115). A first connection part 110 extending from the lower end of the toothbrush head 100 having bristles on its surface toward the knob 200 and a second connection part 110 extending from the upper end of the knob 200 toward the toothbrush head 100, And a second connection part (210) for coupling with the first connection part (110);
In the first connection part 110,
A hinge portion 111 which forms a body of a round bar shape from the center of the lower end face toward the handle 200 and a hinge portion 111 which protrudes from the lower end face of the first connection portion 110 at a predetermined length from above the hinge portion 111 Forming a rotation guide 212 ';
In the second connection part 210,
A hinge hole 211 through which the hinge portion 111 is inserted and formed at an inner diameter and a depth corresponding to the outer diameter and the length of the hinge portion 111 at the center of the upper side, And a rotation guide groove (114 ') formed inwardly in a depth direction;
The toothbrush head 100 includes a hinge portion 111 as a center axis and a rotation guide 212 'provided inside the rotation guide groove 114' Is configured to rotate with the handle (200) as a starting point. 5. The method of claim 4,
The rotation guide groove 114 '
A guide curved surface 112 'forming a curved surface surrounding the outer diameter of the hinge hole 211 and a slope having symmetrical slopes having a predetermined angle of inclination from the both sides of the guide curved surface 112' Guide slopes 113a 'and 113b';
The rotation guide 212 '
Both sides of the rotation guide 212 'are disposed in contact with the guide curved surface 112' inside the rotation guide groove 114 'in accordance with the rotation direction of the toothbrush head 100, (113a ', 113b'). The toothbrush of claim 1, 5. The method of claim 4,
The hinge portion 111 is provided with a release preventing groove 115 formed to penetrate the hinge portion 111 at a predetermined depth along the outer peripheral surface of the body,
A coupling hole 213 penetrating through the hinge hole 211 at a position corresponding to the release preventing groove 115 of the hinge portion 111 inserted into the hinge hole 211 is formed in the second connection portion 210 Forming;
Wherein the coupling hole (213) is formed by coupling a releasing part (220) forming an arch of an inner diameter corresponding to an outer diameter of the release preventing groove (115).

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